Performance of common snook subjected to different feeding frequencies and rates using automatic feeders

Herrera, Leandro Amaral; Santos, Ana Paula dos; Sousa, Otávio Mesquita de; Kuhnen, Vanessa Villanova; Sanches, Eduardo Gomes

doi:10.1590/s1678-3921.pab2019.v54.00225

Cited by 2 publications

(2 citation statements)

References 24 publications

(37 reference statements)

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“…Previous studies also reported the influence of salinity on monogenean metazoan fauna in fresh and marine fish 98‐100 . When evaluating the effect of different salinities (15 and 32 ppt) on the abundance of Rhabdosynochus rhabdosynochus , Mello et al 99 did not observe a significant reduction in the prevalence or intensity of these species in the gills of sea bass ( Centropomus undecimalis ).…”

Section: Effects Of Singe/independent Water Parameter On Individuals ...mentioning

confidence: 95%

“…When evaluating the effect of different salinities (15 and 32 ppt) on the abundance of Rhabdosynochus rhabdosynochus , Mello et al 99 did not observe a significant reduction in the prevalence or intensity of these species in the gills of sea bass ( Centropomus undecimalis ). This may be related to the biological characteristics of arrow bass, as it is a euryhaline and diadromous species, 98 and in addition to its host, R . rhabdosynochus , it may have acquired salinity resistance through coevolutionary processes.…”

Section: Effects Of Singe/independent Water Parameter On Individuals ...mentioning

confidence: 99%

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Fish parasites can reflect environmental quality in fish farms

Jerônimo

Cruz

Bertaglia

et al. 2022

Reviews in Aquaculture

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In the aquatic environment, fish are subject to different pollutants and environmental variations that favour stress on animals, making them vulnerable to pathogens. Fish parasites are excellent biological indicators of environmental quality, as their parasitic population may increase or decrease in response to changes in water parameters and/or the presence of pollutants. Ectoparasites are considered excellent indicators of environmental quality because they have a monoxenic life cycle with high reproductive rates that have been responsible for the immediate response to changes in aquatic biota. In turn, parasites with a heteroxenous life cycle are also responsive to environmental variation because, with the mortality of intermediate hosts, their population can be easily changed. However, studies with endoparasites and their relation with the environment are more numerous, as they are accumulators of pollutants, especially trace elements, either via fish or through stages of development outside the host that also contribute to the accumulation of metals. Moreover, Digenea, Acanthocephala, Nematoda and Cestoda parasites can compete for trace elements that are bioavailable in the environment, as fish with a greater abundance of parasites have a lower concentration of toxic metals in their tissues. Furthermore, they have a high affinity for trace elements that are toxic to human and fish health (arsenic, mercury, lead and cadmium). This review is a comprehensive overview of the use of fish parasites as environmental sentinels and describes their potential as bioindicators of effect and accumulation, and evaluates their application in fish farms environments.

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Section: Effects Of Singe/independent Water Parameter On Individuals ...mentioning

confidence: 95%

Section: Effects Of Singe/independent Water Parameter On Individuals ...mentioning

confidence: 99%

Fish parasites can reflect environmental quality in fish farms

Jerônimo

Cruz

Bertaglia

et al. 2022

Reviews in Aquaculture

View full text Add to dashboard Cite

show abstract

Development of an Edge Computing-Based Intelligent Feeding System for Observing Depth-Specific Feeding Behavior in Red Seabream

Lee,

Bae,

Lee

2023

JMSE

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The supply of feed has a significant effect on fish growth and operation costs, making it a critical factor in aquaculture. Owing to the repetitive nature of feed supply, feeding techniques have undergone a shift from manual feeding to systems allowing operators to set feed quantities and timing, reducing labor efforts. However, unlike manual feeding, automatic systems cannot adjust the amount of feed supplied according to the feeding activities of fish, potentially resulting in overfeeding or underfeeding. Such overfeeding causes marine pollution and increases operational costs, whereas underfeeding hinders fish growth. In this study, we present an intelligent feeding system that observes the depth-specific feeding behavior of red seabream during the feeding process and determines whether feed supply must be continued. The performance of the feeding algorithm is evaluated by comparing the feed loss rate measured during a feeding experiment at a red seabream sea cage farm with that of the traditional manual feeding method. The results reveal that the feed supply per unit time of the manual method and the developed intelligent feed supply system is at an equivalent level. Moreover, the difference in the average feed loss rate is a negligible 1.16%, confirming that the new system is slightly more advantageous.

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Performance of common snook subjected to different feeding frequencies and rates using automatic feeders

Cited by 2 publications

References 24 publications

Fish parasites can reflect environmental quality in fish farms

Fish parasites can reflect environmental quality in fish farms

Development of an Edge Computing-Based Intelligent Feeding System for Observing Depth-Specific Feeding Behavior in Red Seabream

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